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diff --git a/src/TextFormat/Types.hs b/src/TextFormat/Types.hs
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+++ b/src/TextFormat/Types.hs
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+module TextFormat.Types (
+    FormattedText(..),
+    TextStyle(..),
+    Color(..),
+) where
+
+import Data.String
+import Data.Text (Text)
+
+
+data FormattedText
+    = PlainText Text
+    | ConcatenatedText [ FormattedText ]
+    | FormattedText TextStyle FormattedText
+    | EndWithNewline FormattedText
+
+instance IsString FormattedText where
+    fromString = PlainText . fromString
+
+instance Semigroup FormattedText where
+    ConcatenatedText xs <> ConcatenatedText ys = ConcatenatedText (xs ++ ys)
+    x <> ConcatenatedText ys = ConcatenatedText (x : ys)
+    ConcatenatedText xs <> y = ConcatenatedText (xs ++ [ y ])
+    x <> y = ConcatenatedText [ x, y ]
+
+instance Monoid FormattedText where
+    mempty = ConcatenatedText []
+    mconcat [] = ConcatenatedText []
+    mconcat [ x ] = x
+    mconcat xs = ConcatenatedText $ concatMap flatten xs
+      where
+        flatten (ConcatenatedText ys) = ys
+        flatten y = [ y ]
+
+
+data TextStyle
+    = CustomTextColor (Maybe Color) (Maybe Color)
+
+
+data Color
+    = DefaultColor
+    | Black
+    | Red
+    | Green
+    | Yellow
+    | Blue
+    | Magenta
+    | Cyan
+    | White
+    | BrightBlack
+    | BrightRed
+    | BrightGreen
+    | BrightYellow
+    | BrightBlue
+    | BrightMagenta
+    | BrightCyan
+    | BrightWhite
+    deriving (Eq)